A continuous random variable XXX has PDF f(x)=13f(x) = \frac{1}{3}f(x)=31 for 0≤x≤30 \le x \le 30≤x≤3. What is P(1<X<2)P(1 < X < 2)P(1<X<2)?
1/9
1/6
1/3
1/2